acrylic latex caulk

[holzboss]

Where do i aplly acrylic latex caulk when building TUBA 60?

[Bill Fitzmaurice]

If you did a good job with the assembly, nowhere.

[Seth]

Any joint you suspect could possibly leak air. Although, I'd just smudge more PL in any questionable place.

[holzboss]

Thank you

[Grant Bunter]

Thank you

If you apply enough PL, and have good “squeeze out” in the joint, you shouldn’t need to worry about caulk.
If you shone a bright light at the joint after it has set, and could see the light shining through, that might be a reason to put caulk on.
Hope that gives you a bit of an idea...

[jimbo7]

I've seen it on so many home-made boxes and thought "why?". This was after using PL, of course. Just like the Frank's Red Hot sauce commerical, "I put that $h1t on everything!".

Hey, Master Yoda. While still on the subject; could air leaks be created by using a flexible latex adhesive in a mdf box with high excursion drivers? We've all seen it used in car audio.

[Bill Fitzmaurice]

I've never used MDF with flexible latex adhesive, so I don't know. I've only used MDF once, and not by choice. Some 20 years ago I was sent a pair of kit speakers to review. They used MDF translam construction. When these small 2x4" loaded MTMs came in at 25 pounds I never again considered using MDF for my own designs.